Polycom 4300T Network Router User Manual


 
Introduction
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This port is used for debug or local diagnostic purposes only. Primary
configuration of the 4300T is performed from a web browser as covered in
Chapter 3.
T1/E1 WAN port
The T1 WAN interface with the following features:
Fully integrated CSU/DSU
T1 support
Fractional T1 support
Layer 2 protocol support for: HDLC, Cisco HDLC (cHDLC), PPP, Frame
Relay
On-board RJ-48 connector for easy direct connection
T1/E1 framer and transceiver
B8ZS/HDB3 zero suppression
Response to Inband Loop codes
Manual payload loop through the GUI
External transmit clock input and receive clock output headers
Timing: internal or external (loop times from the network)
Provides long haul CSU or short haul DSU signaling
Meets FCC part 68 protection requirements
The WAN port is used for connection to a data T1 line. The device at the far
end of the line is a router or other device expecting TCP/IP data. Individual
DS-0 channels on the T1 are not used to carry uncompressed voice.
Ethernet WAN port
The Ethernet 10/100 Mbps port on the 4300T can be used as a WAN interface
as an alternative to the T1 interface. This port is typically used when
connecting the 4300T to an existing T1/E1 WAN router, cable or xDSL
modem.